A 7-year-old boy presents with increasing difficulty in running and climbing stairs.
A 7-year-old boy presents with increasing difficulty in running and climbing stairs. His parents also noticed that he has been falling more frequently. On examination, there is noticeable calf hypertrophy. His Gower’s sign is positive. There is no family history of similar symptoms.
Investigations:
Physical Examination: Calf hypertrophy, positive Gower’s sign
Family History: No known family history of similar symptoms
Which is the most appropriate initial diagnostic investigation for suspected Duchenne Muscular Dystrophy (DMD) in this patient?
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